lime digestion equipment with built-in pulse dust collector

Abstract

This utility model discloses a lime digestion device with a built-in pulse dust removal device, including a digestion chamber and a filter cartridge. A dust removal chamber is located at the top of the digestion chamber, and a pulse tube passes through and is fixedly connected to the top of the dust removal chamber. An impact frame is fixedly connected to the bottom of the pulse tube and communicates with the pulse tube. A transmission rod passes through the center of the top of the filter cartridge and is rotatably connected to the transmission rod. An impeller and a scraper are fixedly connected to the upper and lower ends of the transmission rod, respectively. Through the coordinated design of the pulse tube and the impact frame, this utility model allows for the simultaneous blowing of the pulse airflow through the impact tube onto the filter cartridge surface, while a portion of the airflow enters the impact frame to drive the impeller to rotate. The impeller, through the transmission rod, drives the scraper to rotate synchronously, effectively removing dust adhering to the filter cartridge surface, minimizing dust residue, significantly extending the filter cartridge's cleaning cycle, and reducing the frequency of manual cleaning.

Description

Technical Field

[0001] This utility model relates to the field of lime digestion technology, specifically to a lime digestion device with a built-in pulse dust removal device. Background Technology

[0002] In industries such as building materials, chemicals, and metallurgy, lime slaking is a key process for converting quicklime into calcium hydroxide. Its products are widely used in desulfurization, building material production, and wastewater treatment. During lime slaking, the reaction of quicklime with water releases a large amount of heat, accompanied by the intense release of particulate matter. If dust is not collected in a timely manner, it will not only lead to a deterioration of workshop air quality and harm the health of operators, but also cause waste of raw materials and scaling on equipment surfaces.

[0003] Existing equipment incorporates pulse jet dust collectors within the digestion chamber. However, traditional pulse jet dust collectors can only remove some dust from the surface of the filter cartridges. The remaining dust tends to harden due to repeated adhesion, leading to decreased filter cartridge permeability and reduced dust removal efficiency. Furthermore, relying solely on airflow impact is insufficient to completely remove stubborn dust, requiring frequent shutdowns for manual cleaning, which disrupts production continuity and increases maintenance costs. Utility Model Content

[0004] The purpose of this invention is to provide a lime digestion device with a built-in pulse dust removal device, which solves the problem mentioned in the background art that the airflow of traditional pulse equipment can only strip off part of the dust on the surface of the filter cartridge, and the remaining dust is prone to hardening due to repeated adhesion, and it is difficult to completely remove stubborn dust by simply relying on airflow impact.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lime digestion device with a built-in pulse dust removal device, comprising a digestion chamber and a filter cartridge. The top of the digestion chamber is provided with a dust removal chamber, and the top of the dust removal chamber is penetrated by a pulse cylinder and fixedly connected to the pulse cylinder. The bottom of the pulse cylinder is fixedly connected to an impact frame, which communicates with the pulse cylinder. The top center of the filter cartridge is penetrated by a transmission rod and rotatably connected to the transmission rod. The upper and lower ends of the transmission rod are respectively fixedly connected to an impeller and a scraper.

[0006] In this technical solution, while the pulsed airflow sweeps the surface of the filter cartridge through the impact pipe, part of the airflow enters the impact frame to drive the impeller to rotate. The impeller drives the scraper to rotate synchronously through the transmission rod, which efficiently removes the dust attached to the surface of the filter cartridge, minimizes dust residue, significantly extends the filter cartridge's open cycle, and reduces the frequency of manual cleaning.

[0007] Preferably, the filter cartridge is located at the top center of the digestion chamber, the scraper is located below the filter cartridge and in contact with the surface of the filter cartridge, and the impeller is located inside the impact frame.

[0008] Preferably, a pulse valve is sealed at the top opening of the pulse cylinder, and several impact tubes are fixedly connected in a circumferential array on the outer side wall of the pulse cylinder, with the impact tubes communicating with the pulse cylinder.

[0009] Preferably, an air cylinder is fixedly connected to one side of the top of the dust removal chamber. The air cylinder is connected to the pulse cylinder. An electric telescopic cylinder is fixedly connected to the top of the air cylinder. The telescopic end of the electric telescopic cylinder passes through the surface of the air cylinder and is fixedly connected to the piston inside the air cylinder.

[0010] Preferably, the left and right side walls of the digestion chamber are respectively provided with a feed plate and a water inlet, and the side wall of the dust removal chamber is provided with a steam channel.

[0011] Preferably, the lower end of the impact tube faces the outer surface of the filter cartridge below, and the impact tube is circumferentially surrounding the outside of the impact frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, through the coordinated design of the pulse cylinder and the impact frame, allows the pulsed airflow to sweep the surface of the filter cartridge through the impact pipe, while a portion of the airflow enters the impact frame to drive the impeller to rotate. The impeller, through the transmission rod, drives the scraper to rotate synchronously, effectively removing dust adhering to the surface of the filter cartridge, minimizing dust residue, significantly extending the filter cartridge's unobstructed cycle, and reducing the frequency of manual cleaning.

[0014] 2. This utility model sets an air cylinder at the top of the dust removal chamber. During the intermittent operation of the pulse equipment, the piston is driven up and down by an electric telescopic cylinder, which can continuously input high-speed airflow into the pulse cylinder. On the one hand, the airflow is used to supplement the cleaning of the filter cartridge through the impact pipe, and on the other hand, it continuously drives the impeller and scraper to work, realizing relay dust removal, improving the cleaning efficiency of the filter cartridge, and effectively ensuring the stability of continuous operation of the equipment. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is an overall view of the present invention;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the scraper of this utility model.

[0019] In the diagram: 1. Digestion chamber; 101. Feed plate; 102. Water inlet; 2. Dust removal chamber; 201. Steam passage; 3. Filter cartridge; 4. Drive rod; 401. Impeller; 402. Scraper; 5. Pulse cylinder; 501. Impact pipe; 502. Impact frame; 6. Pulse valve; 7. Air cylinder; 8. Electric telescopic cylinder; 9. Piston. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description will further elaborate on them in conjunction with specific embodiments.

[0021] Lime digestion equipment with built-in pulse dust collector, see [link / reference]. Figures 1 to 3 The device includes a digestion chamber 1 and a filter cartridge 3. The top of the digestion chamber 1 is equipped with a dust removal chamber 2. The top of the dust removal chamber 2 is penetrated by a pulse cylinder 5 and is fixedly connected to the pulse cylinder 5. A pulse valve 6 is sealed at the top opening of the pulse cylinder 5. Several impact tubes 501 are fixedly connected in a circular array on the outer wall of the pulse cylinder 5. The impact tubes 501 are connected to the pulse cylinder 5. The lower end of the impact tubes 501 faces the outer surface of the filter cartridge 3 below, and the impact tubes 501 are circumferentially surrounding the outside of the impact frame 502.

[0022] In the above technical solution, when the pulse valve 6 is opened, compressed air quickly enters the pulse cylinder 5, and part of the airflow forms a radial high-speed jet through the circumferential array of impact tubes 501, which blows the outer surface of the filter cartridge 3 and uses the airflow impact force to peel off the attached dust; the circumferential design of the impact tubes 501 ensures that the surface of the filter cartridge 3 is subjected to uniform force and has no dead corners for cleaning, and the coordinated blowing of multiple sets of impact tubes 501 improves the dust removal rate on the surface of the filter cartridge 3.

[0023] Specifically, such as Figure 2 and Figure 3 As shown, an impact frame 502 is fixedly connected to the bottom of the pulse cylinder 5. The impact frame 502 is connected to the pulse cylinder 5. A transmission rod 4 passes through the center of the top of the filter cylinder 3 and is rotatably connected to the transmission rod 4. An impeller 401 and a scraper 402 are fixedly connected to the upper and lower ends of the transmission rod 4, respectively. The impeller 401 is located inside the impact frame 502, and the scraper 402 is located below the filter cylinder 3 and is in contact with the surface of the filter cylinder 3.

[0024] In the above technical solution, part of the compressed air in the pulse cylinder 5 enters the impact frame 502, driving the impeller 401 in the frame to rotate at high speed. The impeller 401 drives the lower scraper 402 to rotate synchronously through the transmission rod 4. When the scraper 402 rotates, it can mechanically scrape off the stubborn dust that the airflow has not peeled off. The scraped dust falls back into the digestion chamber 1 under the action of gravity, minimizing dust residue, significantly extending the unobstructed cycle of the filter cartridge 3, and reducing the frequency of manual cleaning.

[0025] Furthermore, such as Figure 1 and Figure 2As shown, an air cylinder 7 is fixedly connected to one side of the top of the dust collection chamber 2. The air cylinder 7 is connected to the pulse cylinder 5. An electric telescopic cylinder 8 is fixedly connected to the top of the air cylinder 7. The telescopic end of the electric telescopic cylinder 8 passes through the surface of the air cylinder 7 and is fixedly connected to the piston 9 inside the air cylinder 7. The electric telescopic cylinder 8 drives the piston 9 to reciprocate inside the air cylinder 7. When it moves downward, it compresses the air inside the air cylinder 7 and sends it into the pulse cylinder 5 through the connecting pipe to form a continuous low-speed airflow. Part of this airflow blows the filter cartridge 3 through the impact pipe 501, and the other part enters the impact frame 502 to maintain the low-speed rotation of the impeller 401, so as to achieve continuous cleaning during the pulse interval, improve the cleaning efficiency of the filter cartridge 3, and effectively ensure the stability of continuous operation of the equipment.

[0026] It is worth noting that, such as Figure 2 As shown, the filter cartridge 3 is located at the top center of the digestion chamber 1. The left and right side walls of the digestion chamber 1 are respectively provided with a feed plate 101 and a water inlet 102. The side wall of the dust removal chamber 2 is provided with a steam channel 201. Quicklime slides into the digestion chamber 1 through the feed plate 101, and then the feed plate 101 is closed. Process water is injected into the water inlet 102. The dust-laden steam generated by the reaction of the two rises to the dust removal chamber 2. After being filtered by the filter cartridge 3, the clean gas is discharged from the steam channel 201. The steam channel 201 can be set with an appropriate length according to the site requirements to avoid the emitted steam from injuring the staff.

[0027] It is worth mentioning that when dust removal is required, the control system sends an electrical signal, and the pulse valve 6 opens instantly. Compressed air is injected from the air tank through the pulse valve 6 into the pulse cylinder 5, forming a high-speed airflow and inducing a secondary airflow several times its own volume. This secondary airflow impacts the surface of the filter cartridge 3 in a pulse form through the impact pipe 501 on the pulse cylinder 5, causing the unreacted quicklime powder and calcium hydroxide fine powder attached to the filter cartridge 3 to peel off and return to the digestion chamber 1 for reaction. Subsequently, the pulse valve 6 quickly closes to complete a single use cycle. It should be noted that the compressed air compressor and corresponding control equipment in the pulse device are currently mature existing technologies and are not the technical solutions that this utility model needs to protect. Therefore, its specific working principle and internal structure will not be described in detail.

[0028] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

Claims

1. A lime digestion device with a built-in pulse dust collector, comprising a digestion chamber (1) and a filter cartridge (3), characterized in that: The top of the digestion chamber (1) is provided with a dust removal chamber (2). The top of the dust removal chamber (2) is connected to a pulse cylinder (5). The bottom of the pulse cylinder (5) is fixedly connected to an impact frame (502). The impact frame (502) is connected to the pulse cylinder (5). The top center of the filter cylinder (3) is connected to a transmission rod (4). The transmission rod (4) is rotatably connected to the transmission rod (4). The upper and lower ends of the transmission rod (4) are fixedly connected to an impeller (401) and a scraper (402).

2. The lime slaking apparatus with built-in pulse dedusting device according to claim 1, characterized in that: The filter cartridge (3) is located at the top center of the digestion chamber (1), the scraper (402) is located below the filter cartridge (3) and in contact with the surface of the filter cartridge (3), and the impeller (401) is located inside the impact frame (502).

3. The lime slaking apparatus with built-in pulse dedusting device according to claim 1, characterized in that: A pulse valve (6) is sealed at the top opening of the pulse cylinder (5), and several impact tubes (501) are fixedly connected in a circular array on the outer side wall of the pulse cylinder (5). The impact tubes (501) are connected to the pulse cylinder (5).

4. The lime slaking apparatus with built-in pulse dedusting device according to claim 1, characterized in that: An air cylinder (7) is fixedly connected to one side of the top of the dust removal chamber (2). The air cylinder (7) is connected to the pulse cylinder (5). An electric telescopic cylinder (8) is fixedly connected to the top of the air cylinder (7). The telescopic end of the electric telescopic cylinder (8) passes through the surface of the air cylinder (7) and is fixedly connected to the piston (9) inside the air cylinder (7).

5. The lime slaking apparatus with built-in pulse dedusting device according to claim 1, characterized in that: The digestion chamber (1) is provided with a feed plate (101) and a water inlet (102) on its left and right side walls, respectively, and the dust removal chamber (2) is provided with a steam channel (201) on its side wall.

6. The lime slaking apparatus with built-in pulse dedusting device according to claim 3, characterized in that: The lower end of the impact tube (501) faces the outer surface of the filter cartridge (3) below, and the impact tube (501) is circumferentially surrounding the outside of the impact frame (502).

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